Solvability of the Problem of Nonisothermal Filtration in a Thin Poroelastic Layer

УДК 517.95

  • Pavel V. Gilev Altai State University, Barnaul, Russia Email: pavel.gilev.2000@mail.ru
  • Alexander A. Papin Altai State University, Barnaul, Russia Email: papin@math.asu.ru
Keywords: Darcy’s law, poroelasticity, nonisothermal two-phase filtration, porosity

Abstract

The two-phase filtration problems arise in various fields of human activity, such as oil and gas extraction, snowmelt modeling, and medicine. All these applications require the development of approaches for modeling such processes, creating models, and theoretically substantiating them. There are various approaches to simulate two-phase filtration processes. This article discusses an approach based on the classical Masket — Leverett model, supplemented by equations for the characteristics of a porous medium and temperature. An initial boundary value problem is set for this model. The studied system splits into two subsystems after dimensionalization and formal passing to a limit with a small parameter. One of the subsystems is closed under its unknown functions and equations. The structure of equations allows finding the classic solution for a problem with smooth initial boundary conditions. The problem is complicated by numerous inconsistencies. The study uses various classical methods of differential equations. The novelty of this study is the use of the variable porosity in the problems of non-isothermal two-phase filtration in a thin poroelastic layer.

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Author Biographies

Pavel V. Gilev, Altai State University, Barnaul, Russia

Postgraduate Student of the Institute of Mathematics and Information Technologies

Alexander A. Papin, Altai State University, Barnaul, Russia

Doctor of Sciences in Physics and Mathematics, Professor, Head of the Department of Differential Equations, Institute of Mathematics and Information Technologies

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Published
2026-04-08
How to Cite
Gilev P. V., Papin A. A. Solvability of the Problem of Nonisothermal Filtration in a Thin Poroelastic Layer // Izvestiya of Altai State University, 2026, № 1(147). P. 97-102 DOI: 10.14258/izvasu(2026)1-13. URL: https://izvestiya.asu.ru/article/view/%282026%291-13.